Charge pump circuit

A charge pump circuit, comprising:

• a dual-phase charge pump, configured to perform a voltage pumping operation on a power source in response to a first clock and a second clock to generate a first pumping voltage at a first node and a second pumping voltage at a second node;
• a first load switch, coupled between the second node and an output terminal of the dual-phase charge pump;
• a second load switch, coupled between the first node and the output terminal;
• and
• a control circuit, coupled to the first load switch and the second load switch, configured to control the first load switch in response to a third clock and control the second load switch in response to a fourth clock,
• wherein the second load switch transfers the first pumping voltage to the output terminal in a period during which the first load switch is turned off,
• wherein the first load switch transfers the second pumping voltage to the output terminal in a period during which the second load switch is turned off;
• wherein the control circuit comprises:
• a first control transistor, wherein a first terminal of the first control transistor is coupled to a voltage source, a second terminal of the first control transistor is coupled to a third node, and a control terminal of the first control transistor is coupled to the second node;
• a second control transistor, wherein a first terminal of the second control transistor is coupled to the voltage source, a second terminal of the second control transistor is coupled to a fourth node, and a control terminal of the second control transistor is coupled to the first node;
• a first control capacitor, coupled between the third node and the third clock;
• and
• a second control capacitor, coupled between the fourth node and the fourth clock,
• wherein a control terminal of the first load switch is coupled to the third node,
• wherein a control terminal of the second load switch is coupled to the fourth node;
• wherein the first node, the second node, the third node and the fourth node are different from each other.